\begin{table}[htbp!] \centering \footnotesize \begin{threeparttable} \caption{Hjort et al. (2021) policy adoption experiment: Persuasion rates} \begin{tabular} {l c c c c} \toprule \textit{Persuasion rates (treatment-on-treated)} & (1) & (2) & (3) & (4) \\ \hline \multicolumn{5}{l}{\textit{\textbf{Nudge adoption definition: All 3 mechanisms}}} \\ 
$ f$ & 0.035 & 0.030 & -0.010 & -0.012 \\
& (0.017) & (0.018) & (0.025) & (0.029) \\
$ f_{pe}$ (pre-existing) & & 0.417 & & -0.053 \\
& & (0.207) & & (0.417) \\
$ f_{diag}$ (diagonal) & & & 0.106 & 0.111 \\
& & & (0.037) & (0.064) \\
MSE & 1.696 & 0.517 & 0.003 & 0.000 \\ \\ \multicolumn{5}{l}{\textit{\textbf{Nudge adoption definition: $ \geq2$ of 3 mechanisms}}} \\
$ f$ & 0.050 & 0.045 & -0.002 & 0.026 \\
& (0.023) & (0.022) & (0.028) & (0.059) \\
$ f_{pe}$ (pre-existing) & & 2.122 & & 1.431 \\
& & (0.808) & & (1.890) \\
$ f_{diag}$ (diagonal) & & & 0.131 & 0.077 \\
& & & (0.053) & (0.095) \\
MSE & 2.062 & 0.059 & 0.196 & 0.000 \\ \\ \multicolumn{5}{l}{\textit{\textbf{Nudge adoption definition: Social cues}}} \\
$ f$ & 0.044 & 0.036 & -0.016 & 0.006 \\
& (0.018) & (0.019) & (0.027) & (0.033) \\
$ f_{pe}$ (pre-existing) & & 0.724 & & 0.363 \\
& & (0.233) & & (0.453) \\
$ f_{diag}$ (diagonal) & & & 0.138 & 0.093 \\
& & & (0.041) & (0.068) \\
MSE & 3.178 & 0.239 & 0.202 & 0.000 \\
\bottomrule \end{tabular} \label{tab:hjort} \begin{tablenotes} \scriptsize \item This table shows the treatment-on-treated persuasion rates estimated from the model in Figure 12. The 3 mechanisms mentioned in the template for the tax reminder letter are the due date, the threat of audits or fines, and social norm language. MSE is the mean squared error in the 4 moments for the treatment group. The MSE for (4) is 0 since the model is exactly identified. Standard errors from 1000 bootstrap samples (resampled at the municipal level) are shown in parentheses. \end{tablenotes} \end{threeparttable} \end{table}
